Petrochirus diogenes | XL

Petrochirus diogenes, commonly known as the extra large hermit crab, is a fascinating invertebrate prized for its size and scavenging abilities in marine aquariums. This species is well-suited for experienced hobbyists seeking a robust cleaner that can help manage detritus and leftover food.

Care and Husbandry: Petrochirus diogenes requires a well-established marine aquarium with stable water parameters. Maintain temperature between 22-26°C, salinity at 1.023-1.025 SG, and pH around 8.1-8.4. Provide a minimum tank size of 150 litres to accommodate its size and roaming behaviour.

Diet: This hermit crab is an omnivorous scavenger. Supplement its diet with meaty foods such as chopped seafood, algae wafers, and detritus found naturally in the tank. Avoid overfeeding to prevent water quality issues.

Compatibility and Reef Safety: Generally peaceful, Petrochirus diogenes coexists well with other invertebrates and fish but may compete for shells with smaller hermit crabs. It is considered reef safe with caution due to occasional predation on small sessile invertebrates or coral polyps. Monitor interactions carefully in sensitive reef systems.

Special Requirements: Provide a variety of appropriately sized empty shells to accommodate its growth and reduce aggression. Ensure plenty of live rock and hiding places to mimic its natural environment and reduce stress.

Overall, Petrochirus diogenes XL is a striking addition to larger marine tanks, offering both functional and aesthetic benefits when cared for properly.